Patents by Inventor Peter P. Chu

Peter P. Chu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Exchange membrane containing modified maleimide oligomers
    Patent number: 8101669
    Abstract: An exchange membrane containing modified maleimide oligomers comprising sulfonated poly(aryl ether ketone) (S-PAEK) and modified maleimide oligomers. The exchange membrane uses the modified maleimide oligomers having a hyper-branched architecture as matrix, and introduces them into S-PAEK to constitute semi-interpenetration network (semi-IPN), so as to intensify water holding capacity, chemical resistance, the electrochemical stability and thermal resistance of the ionic/proton exchange membrane. The exchange membrane can be used to fabricate the membrane electrode assemblies, fuel cells, and be applied them to the fields of seawater desalination, heavy water and sewage treatment, and biomass-energy resources.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: January 24, 2012
    Assignees: Industrial Technology Research Institute, National Central University
    Inventors: Jing-Pin Pan, Tsung-Hsiung Wang, Jung-Mu Hsu, Peter P. Chu, Chien-Shun Wu, Bo-Jun Liu
  • Exchange membrane containing modified maleimide oligomers
    Publication number: 20080221325
    Abstract: An exchange membrane containing modified maleimide oligomers comprising sulfonated poly(aryl ether ketone) (S-PAEK) and modified maleimide oligomers. The exchange membrane uses the modified maleimide oligomers having a hyper-branched architecture as matrix, and introduces them into S-PAEK to constitute semi-interpenetration network (semi-IPN), so as to intensify water holding capacity, chemical resistance, the electrochemical stability and thermal resistance of the ionic/proton exchange membrane. The exchange membrane can be used to fabricate the membrane electrode assemblies, fuel cells, and be applied them to the fields of seawater desalination, heavy water and sewage treatment, and biomass-energy resources.
    Type: Application
    Filed: December 27, 2007
    Publication date: September 11, 2008
    Inventors: Jing-Ping Pan, Tsung-Hsiung Wang, Jung-Mu Hsu, Peter P. Chu, Chien-Shun Wu, Bo-Jun Liu
  • Bis fluorenyl metallocenes and use thereof
    Patent number: 5637744
    Abstract: Group IVB metal metallocenes of bis(1-methyl fluorenyl) diphenyl silane and bis(1-methyl fluorenyl) dimethyl tin are disclosed, plus their use in the production of polyolefins, including isotactic polypropylene.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: June 10, 1997
    Assignee: Phillips Petroleum Company
    Inventors: Helmut G. Alt, Konstantinos Patsidis, M. Bruce Welch, Peter P. Chu
  • Process of polymerizing olefins using diphenylsilyl or dimethyl tin bridged 1-methyl fluorenyl metallocenes
    Patent number: 5631335
    Abstract: Group IVB metal metallocenes of bis(1-methyl fluorenyl) diphenyl silane and bis(1-methyl fluorenyl) dimethyl tin are disclosed, plus their use in the production of polyolefins, including isotactic polypropylene.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: May 20, 1997
    Assignee: Phillips Petroleum Company
    Inventors: Helmut G. Alt, Konstantinos Patsidis, M. Bruce Welch, Peter P. Chu
  • Silyl bridged metallocenes and use thereof
    Patent number: 5627118
    Abstract: Fluorenyl-containing silyl bridged metallocenes, the process of using such metallocenes to polymerize olefins, and the resulting unusual syndiotactic polypropylene are disclosed.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: May 6, 1997
    Assignee: Phillips Petroleum Company
    Inventors: Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley, Peter P. Chu, M. Bruce Welch, Rolf L. Geerts
  • Syndiotactic polypropylene prepared using silyl bridged metallocenes
    Patent number: 5459218
    Abstract: Fluorenyl-containing silyl bridged metallocenes, the process of using such metallocenes to polymerize olefins, and the resulting unusual syndiotactic polypropylene are disclosed.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: October 17, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley, Peter P. Chu, M. Bruce Welch, Rolf L. Geerts
  • Olefin polymerization using silyl-bridged metallocenes
    Patent number: 5401817
    Abstract: Fluorenyl-containing silyl bridged metallocenes, the process of using such metallocenes to polymerize olefins, and the resulting unusual syndiotactic polypropylene are disclosed.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: March 28, 1995
    Assignee: Phillips Petroleum Company
    Inventors: Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley, Peter P. Chu, M. Bruce Welch, Rolf L. Geerts